CN110282950A - A kind of magnesium oxysulfide cementitious material and preparation method thereof with sqouynd absorption lowering noise - Google Patents
A kind of magnesium oxysulfide cementitious material and preparation method thereof with sqouynd absorption lowering noise Download PDFInfo
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- CN110282950A CN110282950A CN201910704877.1A CN201910704877A CN110282950A CN 110282950 A CN110282950 A CN 110282950A CN 201910704877 A CN201910704877 A CN 201910704877A CN 110282950 A CN110282950 A CN 110282950A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00551—Refractory coatings, e.g. for tamping
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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Abstract
The invention belongs to building material technical fields, and in particular to a kind of magnesium oxysulfide cementitious material with sqouynd absorption lowering noise, and preparation method is further disclosed.Magnesium oxysulfide cementitious material of the present invention, using light-magnesite powder, magnesium sulfate, water-reducing agent, organic acid, flyash, lignin and drift-sand as raw material.Magnesium oxysulfide cementitious material of the present invention integrates fire prevention, fire resisting, high-strength light, sqouynd absorption lowering noise performance, solves the application problem of existing building material, the product purpose produced is extensive, it is particularly suitable for the ball mill of factory, the especially inner wall of coal abrading-ball grinding machine, outer wall, and outer surface and the certain environment uses that need to use sound absorption of certain inflammable walls, with good application prospect.
Description
Technical field
The invention belongs to building material technical fields, and in particular to a kind of magnesium oxysulfide gelling material with sqouynd absorption lowering noise
Material, and preparation method is further disclosed.
Background technique
With the development of the modern industry, environmental pollution also generates therewith, and noise pollution is exactly one kind of environmental pollution,
One as the mankind endangers greatly.Currently, noise pollution and water pollution, atmosphere pollution are regarded as three main rings in world wide
Border problem constitutes serious threat to human life quality.
The sound absorption of object be it is universal, sound wave is in communication process, if encountering barrier, a part can be reflected,
Another part can be absorbed.The sound absorption effect of object is not only and sound-absorbing material is in relation to also related with selected sound absorption structure, usually
Material of the average sound absorption coefficient a greater than 0.2 is referred to as sound-absorbing material, and improves construction material to the absorptivity of sound wave, for reducing
Pollution from environmental noise plays an important role.It has developed in the prior art a variety of based on ceramic material, cement material or gypsum
The sound-absorbing material that material is formed, plays different effects in the field of building materials.But existing sound-absorbing material but there is
The defects of material fragility is big, fire resisting is poor or water-resistance is poor.Such as, although rock wool material lightweight, worker's construction is more difficult,
And there is side effect to the skin of institute exposed population group；Although foamed aluminium fire resisting list thermal coefficient is larger；Benzene plate is although light, but deposits
In inflammable defect.
Magnesium oxysulfide cementitious material is a kind of more novel air hardening cementitious materials, and most important feature is lightweight height
By force, the product formed based on magnesium oxysulfide cementitious material has caused to study extensively, but for having effects that the sulphur of sqouynd absorption lowering noise
Oxygen magnesium cementitious material is but rarely reported, and also becomes the blank of building material market.
Summary of the invention
For this purpose, a kind of high with sqouynd absorption lowering noise, fire protection flame retarding, lightweight technical problem to be solved by the present invention lies in providing
The magnesium oxysulfide cementitious material of strong effect；
Second technical problem to be solved by this invention is to provide the preparation method of above-mentioned magnesium oxysulfide cementitious material.
In order to solve the above technical problems, a kind of magnesium oxysulfide cementitious material with sqouynd absorption lowering noise of the present invention,
Raw material including following parts by weight: light-magnesite powder 20-24 parts by weight, Adlerika 15-18 parts by weight, additive
0.15-0.4 parts by weight, flyash 15-22 parts by weight, lignin 1.3-1.8 parts by weight, drift-sand 25-30 parts by weight.
Specifically, the content of magnesia 70-80% of the light-magnesite powder, dioxide-containing silica 7-9%, calcium oxide
Content is 2-3%.
Specifically, the Baume degrees of the Adlerika is 20-30Be.
Specifically, the additive includes water-reducing agent and organic acid.
Preferably, the additional amount of the water-reducing agent is 0.1-0.3 parts by weight, and the additional amount of the organic acid is 0.05-0.1
Parts by weight.
Specifically, the water-reducing agent includes naphthalene water reducer, the organic acid includes citric acid.
The invention also discloses it is a kind of prepare it is described have effects that the method for the magnesium oxysulfide cementitious material of sqouynd absorption lowering noise, including
Following steps:
(1) it takes a selected amount of Adlerika and additive to mix, and a selected amount of light calcined magnesia is added
Powder mixes, and a selected amount of flyash, lignin and drift-sand is then added and mixes, obtains dry material；
(2) gained dry material is poured into mold, hydrostatic profile；
(3) demould, by sample conserve to get.
Specifically, the temperature for controlling each raw material mixing step is 30-32 DEG C in the step (1).
Specifically, the hydrostatic profile step is persistently pressurized 10-15 tons, and static pressure using hydraulic press in the step (2)
It is kept for 2 minutes.
Specifically, the temperature of the curing step is 25-35 DEG C in the step (3).
Magnesium oxysulfide cementitious material of the present invention, with light-magnesite powder, magnesium sulfate, water-reducing agent, organic acid, flyash,
Lignin and drift-sand are raw material, and the bulk density that magnesium oxysulfide gel rubber material product is made is 0.8-1.6cm3/ g, flexural strength
For 6.5-7.5MPa, compression strength 30-35MPa, the 0.2-0.9% for only accounting for equipment weight itself, tool are used on ball mill
There are lightweight, high-strength performance advantage；Meanwhile the gel rubber material can by after acoustic energy absorption due to Air mycetes, air
The friction of molecule and pore wall enables sound to be converted into thermal energy, then is dispersed to overflow and achieve the effect that sqouynd absorption lowering noise, obtained to build
The national standard of industrial area 55dba, resident shopping centre 50dba can be met by building material.
In the raw material of magnesium oxysulfide cementitious material of the present invention, light-magnesite powder and epsom salt are the bases of magnesium cement
This raw material, the fusing point of inorganic material drift-sand be up to 1700 DEG C, refractory material light calcined magnesia be also resistant to 1600-2100 DEG C of height
Temperature, obtained gel rubber material are perfect fireproof materials, have high flame retardant property；The flyash of addition can alleviate by
Magnesium hydrated cementitious causes the heat of hydration generated to concentrate the adverse effect to product fastly；Lignin, which is added, to be helped to make the soft bright of product
Enhancing；Be added fine particle drift-sand can with after the compound recombination of other materials generate subtle aperture, from improving product
Sound absorption effect；And the addition of selected additive then facilitates modified magnesium-cement, plays the role of diminishing, enhancing and water resistant.This hair
The bright magnesium oxysulfide cementitious material integrates fire prevention, fire resisting, high-strength light, sqouynd absorption lowering noise performance, solves existing building material
The application problem of material, the product purpose produced is extensive, is particularly suitable for the ball mill of factory, especially coal abrading-ball grinding machine
Inner wall, the outer surface of outer wall and certain inflammable walls and certain environment that need to use sound absorption use, before having preferable apply
Scape.
Specific embodiment
In the following embodiments of the present invention:
The light calcined magnesia be by low-grade magnesite after conventional 185 DEG C of calcinings gained, wherein content of magnesia
70-80%, dioxide-containing silica 7-9%, calcium oxide content 2-3%, wherein active oxidation content of magnesium is in 62-65%, carefully
Degree is 200 mesh, and screen over-size is no more than 10%；
Epsom salt content used in the epsom salt solution is 96-99%, and the Baume degrees of solution is 30Be,
Keeping solution temperature is 30 DEG C；
Each component content in the flyash are as follows: CaO:6.09%, SiO2: 50.37%, Fe2O3: 4.92%, MgO:
1.94%, SO3: 0.96%, K2O:1.36%, Al2O3: 20.85%, Na2O:0.20%, Cl-: 0.035%, Loss:7.14%；
The water-reducing agent selects naphthalene water reducer, is pulvis brownish yellow powder, primarily serves water-reduction；
The organic acid selects citric acid, is food-grade monohydrate potassium, content 99.9%；
The aeolian sand is the thin grade sand of fineness modulus 0.8-1.5.
Embodiment 1
Have effects that the magnesium oxysulfide cementitious material of sqouynd absorption lowering noise, including following weight raw material: light-burned oxygen described in the present embodiment
Change magnesium powder 22kg, epsom salt solution 15kg, naphthalene water reducer 0.2kg, citric acid 0.1kg, flyash 20kg, lignin
1.8kg, drift-sand 25kg.
Have effects that the preparation method of the magnesium oxysulfide cementitious material of sqouynd absorption lowering noise described in the present embodiment, includes the following steps:
(1) at a temperature of 30-32 DEG C, the epsom salt solution and naphthalene water reducer and citric acid are added to stirring
Device stirs 2 minutes, and the light-magnesite powder is then added and continues stirring 4 minutes, is eventually adding the flyash, lignin
It is stirred 3 minutes with drift-sand, the dry material stirred evenly, measuring its slump is 0；
(2) gained dry material is poured into the mold of compression moulding, is persistently pressurized 10-15 tons using hydraulic press, it is quiet
Pressure is kept for 2 minutes, molding；
(3) molding sample is demoulded, is placed in fog room, in 30 DEG C of constant temperature conserved to get.
Embodiment 2
Have effects that the magnesium oxysulfide cementitious material of sqouynd absorption lowering noise, including following weight raw material: light-burned oxygen described in the present embodiment
Change magnesium powder 20kg, epsom salt solution 15kg, naphthalene water reducer 0.1kg, citric acid 0.1kg, flyash 22kg, lignin
1.6kg, drift-sand 27kg.
Having effects that the magnesium oxysulfide cementitious material of sqouynd absorption lowering noise described in the present embodiment, the preparation method is the same as that of Example 1.
Embodiment 3
Have effects that the magnesium oxysulfide cementitious material of sqouynd absorption lowering noise, including following weight raw material: light-burned oxygen described in the present embodiment
Change magnesium powder 24kg, epsom salt solution 18kg, naphthalene water reducer 0.1kg, citric acid 0.05kg, flyash 15kg, lignin
1.3kg, drift-sand 30kg.
Having effects that the magnesium oxysulfide cementitious material of sqouynd absorption lowering noise described in the present embodiment, the preparation method is the same as that of Example 1.
Embodiment 4
Have effects that the magnesium oxysulfide cementitious material of sqouynd absorption lowering noise, including following weight raw material: light-burned oxygen described in the present embodiment
Change magnesium powder 22kg, epsom salt solution 16kg, naphthalene water reducer 0.3kg, citric acid 0.1kg, flyash 20kg, lignin
1.5kg, drift-sand 28kg.
Having effects that the magnesium oxysulfide cementitious material of sqouynd absorption lowering noise described in the present embodiment, the preparation method is the same as that of Example 1.
Experimental example
Correlated performance test, specific test item are carried out to the magnesium oxysulfide cementitious material prepared in above-described embodiment 1-4 respectively
Mesh and test result see the table below shown in 1.
1 magnesium oxysulfide cementitious material the performance test results of table
| Number | Acoustic absorptivity | Apparent density | Fusing point (DEG C) | Pressure (MPa) | Color |
| Embodiment 1 | 0.4 | 1.5 | 1200 | 33 | It is adjustable |
| Embodiment 2 | 0.5 | 1.6 | 1300 | 34 | It is adjustable |
| Embodiment 3 | 0.45 | 1.55 | 1250 | 32 | It is adjustable |
| Embodiment 4 | 0.4 | 1.5 | 1200 | 30 | It is adjustable |
As it can be seen that magnesium oxysulfide cementitious material of the present invention has preferable sqouynd absorption lowering noise performance, and there is lightweight, high-strength
Performance advantage.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of magnesium oxysulfide cementitious material with sqouynd absorption lowering noise, which is characterized in that the raw material including following parts by weight: light
Burned magnesium oxide powder 20-24 parts by weight, Adlerika 15-18 parts by weight, additive 0.15-0.4 parts by weight, flyash 15-22
Parts by weight, lignin 1.3-1.8 parts by weight, drift-sand 25-30 parts by weight.
2. the magnesium oxysulfide cementitious material with sqouynd absorption lowering noise according to claim 1, which is characterized in that described light-burned
Content of magnesia 70-80%, dioxide-containing silica 7-9%, the calcium oxide content 2-3% of magnesia powder.
3. the magnesium oxysulfide cementitious material with sqouynd absorption lowering noise according to claim 1 or 2, which is characterized in that described
The Baume degrees of Adlerika is 22-30Be.
4. the magnesium oxysulfide cementitious material with sqouynd absorption lowering noise according to claim 1-3, which is characterized in that
The additive includes water-reducing agent and organic acid.
5. the magnesium oxysulfide cementitious material with sqouynd absorption lowering noise according to claim 4, which is characterized in that the diminishing
The additional amount of agent is 0.1-0.3 parts by weight, and the additional amount of the organic acid is 0.05-0.1 parts by weight.
6. the magnesium oxysulfide cementitious material with sqouynd absorption lowering noise according to claim 4 or 5, which is characterized in that described
Water-reducing agent includes naphthalene water reducer, and the organic acid includes citric acid.
7. a kind of prepare the method described in claim any one of 1-6 with the magnesium oxysulfide cementitious material of sqouynd absorption lowering noise,
It is characterized in that, includes the following steps:
(1) a selected amount of Adlerika and additive is taken to mix, and it is mixed that a selected amount of light-magnesite powder is added
It is even, a selected amount of flyash, lignin and drift-sand is then added and mixes, obtains dry material；
(2) gained dry material is poured into mold, hydrostatic profile；
(3) demould, by sample conserve to get.
8. have effects that the method for the magnesium oxysulfide cementitious material of sqouynd absorption lowering noise described in preparation according to claim 7, it is special
Sign is, in the step (1), the temperature for controlling each raw material mixing step is 30-32 DEG C.
9. have effects that the method for the magnesium oxysulfide cementitious material of sqouynd absorption lowering noise described in preparation according to claim 7 or 8,
It is characterized in that, in the step (2), the hydrostatic profile step is persistently pressurized 10-15 tons using hydraulic press, and static pressure keeps 2
Minute.
10. having effects that the magnesium oxysulfide cementitious material of sqouynd absorption lowering noise according to the described in any item preparations of claim 7-9
Method, which is characterized in that in the step (3), the temperature of the curing step is 25-35 DEG C.
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| CN114908627A (en) * | 2022-05-19 | 2022-08-16 | 西南科技大学 | Basic magnesium sulfate cement-based self-luminous brick and preparation method thereof |
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| CN114908627A (en) * | 2022-05-19 | 2022-08-16 | 西南科技大学 | Basic magnesium sulfate cement-based self-luminous brick and preparation method thereof |
| CN114908627B (en) * | 2022-05-19 | 2023-09-01 | 西南科技大学 | Basic magnesium sulfate cement-based self-luminous brick material and preparation method thereof |
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